<template>
  <section class="chart-container">
    <el-row>
      <el-col :span="12">
        <div id="chartColumn" style="width:100%; height:400px;"></div>
      </el-col>
      <el-col :span="12">
        <div id="chartBar" style="width:100%; height:400px;"></div>
      </el-col>
      <el-col :span="12">
        <div id="chartLine" style="width:100%; height:400px;"></div>
      </el-col>
      <el-col :span="12">
        <div id="chartPie" style="width:100%; height:400px;"></div>
      </el-col>
      <el-col :span="24">
        <a href="http://echarts.baidu.com/examples.html" target="_blank" style="float: right;">more>></a>
      </el-col>
    </el-row>
  </section>
</template>

<script>
import echarts from 'echarts'

export default {
  data() {
    return {
      chartColumn: null,
      chartBar: null,
      chartLine: null,
      chartPie: null
    }
  },

  methods: {
    drawColumnChart() {
      this.chartColumn = echarts.init(document.getElementById('chartColumn'));
      this.chartColumn.setOption({
        title: {text: 'Column Chart'},
        tooltip: {},
        xAxis: {
          data: ["衬衫", "羊毛衫", "雪纺衫", "裤子", "高跟鞋", "袜子"]
        },
        yAxis: {},
        series: [{
          name: '销量',
          type: 'bar',
          data: [5, 20, 36, 10, 10, 20]
        }]
      });
    },
    drawBarChart() {
      this.chartBar = echarts.init(document.getElementById('chartBar'));
      this.chartBar.setOption({
        title: {
          text: 'Bar Chart',
          subtext: '数据来自网络'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'shadow'
          }
        },
        legend: {
          data: ['2011年', '2012年']
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: {
          type: 'value',
          boundaryGap: [0, 0.01]
        },
        yAxis: {
          type: 'category',
          data: ['巴西', '印尼', '美国', '印度', '中国', '世界人口(万)']
        },
        series: [
          {
            name: '2011年',
            type: 'bar',
            data: [18203, 23489, 29034, 104970, 131744, 630230]
          },
          {
            name: '2012年',
            type: 'bar',
            data: [19325, 23438, 31000, 121594, 134141, 681807]
          }
        ]
      });
    },
    drawLineChart() {
      this.$http.get("/shop/echarts").then(res => {
        if (res.data.success) {
          this.chartLine = echarts.init(document.getElementById('chartLine'));
          this.chartLine.setOption({
            title: {
              text: 'Line Chart'
            },
            tooltip: {
              trigger: 'axis'
            },
            legend: {
              data: ['邮件营销']
            },
            grid: {
              left: '3%',
              right: '4%',
              bottom: '3%',
              containLabel: true
            },
            xAxis: {
              type: 'category',
              boundaryGap: false,
              data: res.data.resultObj.x
            },
            yAxis: {
              data: [0, 1, 2, 4, 6]
            },
            series: [
              {
                name: '邮件营销',
                type: 'line',
                stack: '总量',
                data: res.data.resultObj.y
              },
            ]
          });
        }
      }).catch(res => {
        this.$message.error("网络繁忙")
      })

    },
    drawPieChart() {
      this.$http.get("/emp/echarts").then(res => {
        if (res.data.success) {
          console.log(res.data.resultObj.x)
          this.chartPie = echarts.init(document.getElementById('chartPie'));
          this.chartPie.setOption({
            title: {
              text: 'Pie Chart',
              subtext: '纯属虚构',
              x: 'center'
            },
            tooltip: {
              trigger: 'item',
              formatter: "{a} <br/>{b} : {c} ({d}%)"
            },
            legend: {
              orient: 'vertical',
              left: 'left',
              data: [res.data.resultObj.x]
            },
            series: [
              {
                name: '访问来源',
                type: 'pie',
                radius: '55%',
                center: ['50%', '60%'],
                data: [
                  {value: res.data.resultObj.y[0], name: res.data.resultObj.x[0]},
                  {value: res.data.resultObj.y[1], name: res.data.resultObj.x[1]},
                ],
                itemStyle: {
                  emphasis: {
                    shadowBlur: 10,
                    shadowOffsetX: 0,
                    shadowColor: 'rgba(0, 0, 0, 0.5)'
                  }
                }
              }
            ]
          });
        }
      }).catch(res => {
        this.$message.error("网络繁忙")
      })
    },
    drawCharts() {
      this.drawColumnChart()
      this.drawBarChart()
      this.drawLineChart()
      this.drawPieChart()
    },
  },

  mounted: function () {
    this.drawCharts()
  },
  updated: function () {
    this.drawCharts()
  }
}
</script>

<style scoped>
.chart-container {
  width: 100%;
  float: left;
}

/*.chart div {
    height: 400px;
    float: left;
}*/

.el-col {
  padding: 30px 20px;
}
</style>
